:root{
  --fg:#e8eaed;
  --muted:#9aa0a6;
  --bg:#0b0f14;
  --card:#111826;
  --line:#223045;
  --accent:#8ab4f8;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: radial-gradient(1200px 800px at 50% 20%, #121a29 0%, var(--bg) 55%);
  color:var(--fg);
}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
.container{
  min-height:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
}
.card{
  width:min(760px, 100%);
  background: color-mix(in srgb, var(--card) 82%, transparent);
  border:1px solid var(--line);
  border-radius:18px;
  padding:28px;
  backdrop-filter: blur(10px);
}
.brand{
  text-align:center;
  font-size:44px;
  letter-spacing:2px;
  margin:6px 0 18px;
}
.sub{
  text-align:center;
  color:var(--muted);
  margin:0 0 18px;
}
.drop{
  border:1px dashed #3a4a66;
  border-radius:16px;
  padding:22px;
  text-align:center;
  background:rgba(255,255,255,0.03);
}
.drop.dragover{
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(138,180,248,0.15);
}
.row{
  display:flex;
  gap:12px;
  justify-content:center;
  margin-top:14px;
  flex-wrap:wrap;
}
.btn{
  border:1px solid #2a3a55;
  background:#0f1726;
  color:var(--fg);
  padding:10px 14px;
  border-radius:12px;
  cursor:pointer;
}
.btn:hover{border-color:#3a4a66}
.small{font-size:13px;color:var(--muted);margin-top:10px}
.out{
  margin-top:16px;
  padding:12px 14px;
  border-radius:14px;
  border:1px solid var(--line);
  background: rgba(0,0,0,0.18);
  overflow:auto;
}
.code{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size:13px;
  white-space:nowrap;
}
.hidden{display:none}